Safety clasp for chains of all sizes and collars



epfin H, fl@23,- 3,467,917 L.- J. A. BERTRAND SAFETY CLASP FOR CHAINS OF ALL SIZES, AND COLLARS Filed Jan. 12. 1922 Mare Patented Sept. 11, was. j l dmfil? UNHE STAES BTENT FEQE.

LEON JOSEPH ALEXANDRE IBERTBAND, O13 PARIS, FRANCE.

SAFETY CLASP FOR CHAINS OF ALL SIZES AND COLLABS.

Application filed January 12, 1922. Serial No. 528,761.

To all whom z'zfmay concern: the free passage, in either direction, of the Be it known that I, LnoN JosErH ALEX- terminal ring 4 of the chain, when it is de- 45 ANDRE BERTRAND, a citizen of the French Resired to close the latter. public, residing at Paris, France, 177 Rue du In order to bring the terminal ring 4 to Temple, have invented a new and useful Imthe position which it must assume for closprovement in Safety Clasps for Chains of all ing the chain, it is inserted through the gap Sizes and Collars; and I do hereby declare B and slidden at first along the pin 2, then 50 the following to be a full, clear, and exact along the spring-ring 1, after having predescription of the same. viously forced inwards, through the medium This invention has for its object an imof the push-button- 3, the movable part 1 proved safety-clasp for collars, neck-chains, of Said ring, which part is thereafter allowed bracelets, or other similar articles and, gento spring freely outwards, so as to close this 55 erally, for chains of all kinds and sizes, the ring, as soon as the ring 4 has been engaged said clasp enabling tosecure, in a simple and around the latter, as shown in the drawing.

'15 absolutely reliable manner, the junction of For opening the chain, it suflices to liberthe two ends of the chain to which it is aptate the end thereof by bringing back the ring lied, when it isdesired to close the latter, as lupon the pin 2, then to Withdraw said so well as the loosening of one of the ends of ring through the gap B. The aforesaid pin this chain, when it is desired to open it; 2, acting as a locking device, may be The invention relates also to certain modistraight, as shown in the drawing, but I do fied structures of said clasp characterized by not limit the invention to this particular various modes of realization of the locking form. 65 device intended to prevent the opening of Claims: the chain, when the clasp is accidentally 1. A safety-clasp for universal use, comopened. prising a ring having an opening, a guard- The accompanying drawing illustrates, by pin fastened at one end to the inner part of way of example, a specific embodiment of the the ring, its other end terminating short of 70 invention. contact with the ring, the guard-pin being This safety-clasp consists of a hollow ring rigid.

1, of the well known type, provided, as 2. A safety-clasp for universal use, comusual, with an internal closing-spring, but prising a ring having an opening, a guardcomprising, as a novel feature, a diametral pin fastened at one end to the inner part of 75 small red or pin 2. The latter is soldered, the ring, its other end terminatin short of or fastened in any other suitable manner, at contact with the ring, the guard-pin being one of its ends, to the ring 1 close tothe rigid, and fastened to the ring at a point orifice A serving as inlet-port for the movsubstantially flush with one edge of the able part1 of the spring-ring 1 on the side opening, whereby in removal of a chain 30 pposed to that where is situated the pushring from the ring, the chain ring must be button 3. passed successively, over the ring, and the As aforesaid, the pin 2 is fastened only at guard-pin.

one of its ends. Between the other end of In testimony whereof I have signed my the same and the internal wall of the ring 1 name to this specification. is provided a clear. space or gap B allowing LEON S H A A DRE BERTRAND. 

